A man has been jailed for causing the death of a passenger in his van on the M40 near Warwick after he crashed into the back of a lorry.
The collision took place in the early hours of the morning in May 2024 when Legard Swaby, 41, was driving from London to Birmingham.
The investigation led by Warwickshire Police's PC Craig Pearson showed the van crashed into the back of a lorry at 91 miles per hour with no attempt to break or steer.
The passenger suffered "catastrophic injuries" and died later in hospital.
Swaby claimed he was trying to wake the passenger so he could take a turn at driving at the time of the collision.
Police enquiries showed the "circumstances of the collision were consistent with fatigue".
PC Pearson said: "Our investigation showed Swaby drove past four service s